Wednesday, May 14, 2014

Caterpillar agrotis

Pulau TidungSymptoms experienced in the trunk young corn plants are breaking up eventually die .Agrotis sp . Attack at night and during the day . There are 3 kinds armyworm / agrotis this , namely :

Agrotis segetum , who is black , often found in highland areas .Agrotis ipsilon , brownish-black , found in upland areas and lowAgrotis INTERJECTION , black color , there are many on the island of Java3 . Control caterpillars with insecticides Dursban 20 EC , at a dose of 2 ml per 1 liter of water . Each hectare can be used 500 liters of solution4 . Borer leaf and stem borer

Parts of maize plants attacked by caterpillars and Sesamia
inferens pyrasauta nubilasis is lower stem segments and leaf buds
growing point of the corn crop .Symptoms plants wither .Countermeasures by using insecticides Azodrin 15 WSC at a dose of 30 liters in 10 liters of water .

5 . Caterpillar cob ( Heliothis armigera )

Symptoms can be seen in the presence of bite marks on the presence of tunnels in the seed and corn cobs .Cob caterpillar attack / enter the plant through the corn cobs , corn kernels new consuming .Control by spraying using Furadan 3G or to make a hole near the plant , given insecticide and closed again .The dose used is 10 grams per square meter .Should be done when the corn crop is flowering , not before
harvest , because it can harm us who participated consume corn because
residues of the insecticide .Disease in maize, namely :

Taruhan Bola Online1 . Blight leaf or leaf rustLeaf blight can be divided into three kinds , namely :Corn plants are plants that have high levels of photosynthesis , thus, it needs sunlight . So a good location for the cultivation of maize is an open area in the
form of paddy fields atu which is not protected from sunlight .